Large Lot 3/4" Letters for Counter Signs Boards Pop 2 sets white & 1 set blue

Description

Plastic molded letters. (no metal pins -  the back has raised plastic on top and bottom for attaching to the sign)
3/4" high letters and numbers
there are 3 sets.  I am not certain if they are complete. -  they may be missing a  few letters as some became detached
There are 2 white sets and 1 blue set.  Each set has multiples of each letter and number.  There are also some symbols
None of these were ever used, but a few are detached from the plastic holders   These have been stored for some time.  I believe that they are vintage , but I am not certain. There are no manufacture marks on them